Unusual and Rare Causes of Monocular Elevation Deficit.

Area of Science:

• Ophthalmology
• Neurology

Background:

• Monocular elevation deficit (MED) presents with impaired upward eye movement in one eye.
• Identifying the underlying cause of MED is critical for effective treatment.

Purpose of the Study:

• To investigate rare and unusual etiologies of monocular elevation deficit.
• To underscore the significance of prompt diagnosis and appropriate management for diverse causes of MED.

Main Methods:

• Retrospective analysis of five patients with diplopia and elevation deficit.
• Comprehensive ophthalmological and neurological examinations.
• Diagnostic imaging (e.g., MRI, CT) to identify underlying pathologies.

Main Results:

• Five distinct rare causes of MED were identified: iatrogenic factors, sphenoid wing meningioma, neurocysticercosis, sarcoidosis, and midbrain infarct.
• All patients received appropriate and individualized management based on their specific diagnosis.

Conclusions:

• Monocular elevation deficit can stem from a wide spectrum of rare conditions.
• A high index of suspicion, coupled with thorough clinical evaluation and advanced imaging, is paramount for diagnosing serious underlying causes of MED.